View Single Post
  #19   Report Post  
Posted to alt.home.repair
Terry Terry is offline
external usenet poster
 
Posts: 663
Default Connecting Extension Cords

On Sun, 29 Apr 2007 03:00:39 GMT, (Doug Miller)
wrote:

In article , Charlie Morgan wrote:

Unless the device you need to power draws very little power and doesn't care
about voltage, you really should get a proper 10/3 100 foot extension cord.
Just
the 50 foot 14/3 is going to have significant losses from end to end.


Ummmmm.... 14ga copper wire has a resistance of 2.58 milliohms per foot, or
129 milliohms in fifty feet. Just how much of a loss do you suppose that's
going to cause?



That would be 258.

VD on a 13A load would be 13 * .258 = 3.35V